Finding the Fourth Proportional to 31,514.86, 43,491.90 and 18,086.68

Step by Step Solution

1. Step 1: Write the proportion equation
   31,514.86 : 43,491.90 = 18,086.68 : x
2. Step 2: Convert to fraction form
   31,514.86/43,491.90 = 18,086.68/x
3. Step 3: Cross multiply
   31,514.86x = 43,491.90 × 18,086.68
4. Step 4: Simplify right side
   31,514.86x = 786,624,077.89
5. Step 5: Solve for x
   x = 786,624,077.89/31,514.86
6. Step 6: Final answer
   x = 24,960.42